2011 was a record year for extreme weather and damage from natural disasters in the United Sates. Around the world there was also hardship and tragedy related to the weather. Scientists who have been observing these extremes see not only historically significant developments, they see a connection to climate change. In this video produced by PBS (United States), this connection is explained.
Watch How 2011 Became a ‘Mind-Boggling’ Year of Extreme Weather on PBS. See more from PBS NewsHour.
Photo: jetalone / flickr